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Space Mice Babies Born From Frozen Stem Cells Give Hope for Human Fertility in the Cosmos

Learn about mice babies that were born from stem cells previously frozen on the International Space Station, which could one day lead to human reproduction in space.

Jack Knudson
ByJack Knudson
International space station
International Space Station(Image Credit: Alones/Shutterstock)

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The miracle of childbirth hasn't happened in space quite yet, but mice babies have proven that it may not be as risky as previously thought.

Aiming to test how space conditions would impact offspring, a new study sent stem cells from mice in space to be frozen for six months before returning to Earth. Now, researchers are reporting good news: So far, the mice offspring born from the cells are as healthy as can be.

The study behind this encouraging development, published in Stem Cell Reports, is a major step forward in understanding whether human offspring can prosper in space. While the mice babies with out-of-this-world origins will still need to be monitored for long-term health effects, there’s nothing off about their DNA for now.

A growing interest in long-term space missions and space tourism has raised many questions on the issue of fertility in space. Being in space for ...

  • Jack Knudson

    Jack Knudson

    Jack Knudson is an assistant editor for Discover Magazine who writes articles on space, ancient humans, animals, and sustainability, and manages the Planet Earth column of the print issue.

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